Release notes for Optimizely CMS and Customized Commerce updates

Fixed an issue where the WebSocket handler threw an exception for early termination because the remote party closed the WebSocket connection without completing the closing handshake.

Updated EPiServer.ImageLibrary.ImageSharp dependency to 1.0.1 which contains a vulnerability fix.

The product implementation of AspNet Identity now uses normalized usernames, which are indexed in the database. In conjunction with this, the performance of working with users in groups was significantly improved, which is reflected when working with approval definitions.

Fixed an issue where a console error was thrown if contentSelector was not defined.

Fixed an issue where Audiences were not sorted alphabetically by their names. 

Simplified the restriction information so that it occupies less space in the editors.

Fixed an issue where edit mode did not load when defaultView was not available.

Fixed an issue where the name of the form field or the header for the XSRF token could not be changed.

Fixed an issue where property values in nested blocks did not update correctly when using Quick Edit.

Fixed an issue where you could not delete a website language even though it was not in use by any site.